Nuclear 2c Value
Mostrando 13-24 de 63 artigos, teses e dissertações.
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13. X-ray beam qualities for dental radiology purposes / PadronizaÃÃo de qualidade de feixes de raios-X para uso em radiologia odontolÃgica
In order to establish characteristics or properties of equipment for diagnostic radiology, e.g. ion chambers and semiconductor detectors, calibration laboratories offer a set of well-defined radiation conditions, called X-ray qualities, which can be used for many Physics studies and medical purposes. These X-ray qualities can be determined in terms of: (a) X
Publicado em: 2009
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14. Estudo da etiologia da surdez neurossensorial em recem-nascidos de alto risco / Etiological study of the sensorioneural deafness in high risk newborns
The frequency of sensorioneural hearing loss in high-risk newborns is 20-40 in 1000 births. In many cases, the cause is environmental, due to prenatal, perinatal and postnatal factors, or caused by genetic factors. The main objectives of this project were to determine the etiology of the hearing loss in children admitted into Neonatal Intensive Care Unit (NI
Publicado em: 2008
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15. Preparação de resinas de poliuretana à base de óleo de mamona e dietanolamina
The aim of this work was the preparation of polyols from reactions between castor oil and dietanolamine to increase the hydroxyl content and the network degree in the products to application in electronic devices. The polyols and the mixtures obtained were characterized by nuclear magnetic ressonance. Castor oil (CO) is a natural triglyceride - based polyol
Publicado em: 2007
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16. Microarray analysis of gene expression in the inflammatory T cell response and apoptosis pathways of periodontitis and non-periodontitis sites / Análise por Microarray da expressão genética de mecanismos relacionados à apoptose, resposta de células T e inflamação em sítios com e sem periodontite.
It is widely believed that pathogenic bacteria provide the initial trigger in periodontal disease. However, the exact pathogenic mechanisms responsible for the progression of periodontal disease remain unclear. Moreover, the biologic basis dictating the susceptibility to disease has not been elucidated. Therefore, the present study sought to investigate the
Publicado em: 2007
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17. VariaÃÃes transcricionais dos genes AR, SRD5A2, KLK2, PCA3, KLK3 e PSMA e implicaÃÃes no diagnÃstico molecular do cÃncer de prÃstata
CHAPTER I - Prostate cancer is a common disease in the world and in some countries it is one of the main causes of male population mortality. Some molecular markers have been associated with prostate carcinogenesis. To observe changes in transcript levels of the AR, SRD5A2, KLK2, PSMA and PCA3 genes, the mRNA was analyzed in tissues with prostatic adenocarci
Publicado em: 2007
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18. Interação de nanotubos de carbono com segmentos de DNA
Single- and double-stranded DNA (deoxyribonucleic acid) molecules can strongly bind to single-walled carbon nanotubes (SWNT) via non-covalent interactions. Under certain conditions, the DNA molecule spontaneously self-assembles into a helical wrapping around the tubular structure of the carbon nanotubes to form DNA/SWNT hybrids, which are both stable and sol
Publicado em: 2007
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19. Image cytometric measurement of nuclear DNA content in pepper (Capsicum annuum L.) / Determinação do conteúdo de DNA em pimentão (Capsicum annuum L.) por citometria de imagem
Capsicum genus is one of the most important members of the Solanaceae family with high economic value. Out of 25 known species, five are extensively cultivated. Capsicum annuum is the most important commercially by its agronomic value as spice. In despite of this importance, the nuclear DNA content of C. annuum is still uncertain with values from the literat
Publicado em: 2006
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20. A direct measurement of the neutron-neutron scattering length
A direct measurement of nn-scattering by colliding free neutrons has never been performed. Indirect measurements continue to provide inconsistent results, leaving the issue of charge symmetry in the nuclear force unresolved. At present the Russian pulsed reactor YAGUAR is the best neutron source for such a measurement. A neutron moderator is installed in the
Brazilian Journal of Physics. Publicado em: 2005-09
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21. Estudos reprodutivos, citogenéticos na população de Rhamdia quelen (pisces, Rhamdiidae) do Rio Uberabinha no município de Uberlândia - MG e desenvolvimento de sistema artesanal de recirculação dàgua para criação de peixes
The Uberabinha river in Uberlândia MG, with an urban area predominancy, in its ichthyofauna composition, presents an expressive fish specimens number. It is detached Rhamdia quelen (Jundiá catfish) as a survivor to the city development process and consequently to the pollution. This specie perform an important ecological role, it is eaten up by part of the
Publicado em: 2005
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22. Coulomb nuclear interference with deuterons in even palladium isotopes
Angular distributions for the inelastic scattering of 13.0 MeV deuterons on 104;106;108;110Pd were measured with the Sao Paulo Pelletron-Enge-Spectrograph facility in the range of 12(0) < thetalab < 64(0). A Coulomb-Nuclear Interference analysis, employing the Distorted Wave Born Approximation with the Deformed Optical Model as transition potential, under we
Brazilian Journal of Physics. Publicado em: 2004-09
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23. Quimionucleólise cervical associada à fenda ventral em cães: avaliação clínico-cirúrgica, radiográfica e histológica / [Chemonucleolysis of canine cervical intervertebral disks associated with ventral slots: Clinical-surgical, radiological and histological aspects]
The present study has as objectives to evaluate the clinical-surgical, radiological and histological aspects of canine cervical intervertebral disks after chemonucleolysis with chymopapain associated to the ventral slot. For that, it was used 24 dogs randomly divided into six equal groups. The ventral slot was accomplished in the area of the intervertebral d
Publicado em: 2004
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24. Soil fertility and 137Cs redistribution as related to land use, landscape and texture in a watershed of ParaÃba state / Fertilidade do solo e redistribuiÃÃo de 137Cs em funÃÃo da cobertura vegetal, relevo e classes texturais, em uma microbacia hidrogrÃfica do estado da ParaÃba
Intensive land use and growing deforestation of the natural vegetation in Northeastern Brazil have contributed to the degradation of resources, particularly the decrease of soil fertility. As a result, biodiversity and ecosystem capacity to restore its resources after disturbances have been diminished. The decrease in soil fertility is more substantial in ar
Publicado em: 2003